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Category:   Application (Web Browser)  >   Microsoft Edge Vendors:   Microsoft
Microsoft Edge Object Memory Handling Flaw in JavaScript Engine Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1038425
SecurityTracker URL:  http://securitytracker.com/id/1038425
CVE Reference:   CVE-2017-0223, CVE-2017-0228   (Links to External Site)
Updated:  Aug 9 2017
Original Entry Date:  May 9 2017
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Two vulnerabilities were reported in Microsoft Edge. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create specially crafted content that, when loaded by the target user, will trigger an object memory handling error in the JavaScript engine and execute arbitrary code on the target user's system [CVE-2017-0223, CVE-2017-0228]. The code will run with the privileges of the target user.

These vulnerabilities also be exploited via an embedded ActiveX control marked "safe for initialization" in an application or Microsoft Office document.

Hung Tien Tran @hungtt28 of Viettel Cyber Security, Christian Holler (decoder, @mozdeco) - own-hero Team, and Microsoft ChakraCore Team reported these vulnerabilities.

Impact:   A remote user can create content that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a fix.

A restart is required.

On August 8, 2017, Microsoft updated their bulletin to announce that they issued a revised fix for CVE-2017-0228 for Microsoft Edge on Windows 10, 10 Version 1511, 10 Version 1607, and 10 Version 1703 as part of the August 2017 security updates to fully correct the vulnerability.

The Microsoft advisories are available at:

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0223
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0228
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4016871
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4019215
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4019472
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4019473
https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4019474

Vendor URL:  catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4016871 (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (10)
Underlying OS Comments:  10, 10 Version 1511, 10 Version 1607, 10 Version 1703

Message History:   None.


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